New Haven weather in June 2025

Expect 25°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in New Haven in June. Check more long-term weather averages for New Haven in June before you book your next holiday to Connecticut in 2025/2026.

  • 25°C maximum daytime temperature in June in New Haven25
    25°C max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in June in New Haven11
    11 days with some rainfall
  • 14°C minimum night-time temperature in June in New Haven14
    14°C min night temperature
  • 15 hours of daylight per day in June in New Haven15
    15 hours of daylight per day
  • Low heat & humidity in June in New HavenL
    Low heat & humidity
  • 76 mm monthly rainfall in June in New Haven76
    76 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in New Haven8
    8 (Very High) UV index
  • 17°C sea temperature in June in New Haven17
    17°C sea temperature

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The June weather guide for Connecticut (New Haven) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in New Haven in June?

Daytime temperatures usually reach 25°C in New Haven in June with low heat and humidity, falling to 14°C at night.

How sunny is it in New Haven in June?

There are normally 9 hours of bright sunshine each day in New Haven in June - that's 60% of daylight hours.

How warm is the sea around New Haven in June?

The average sea temperature around New Haven in June is 17°C.

Does it rain in New Haven in June?

There are usually 11 days with some rain in New Haven in June and the average monthly rainfall is 76mm.

New Haven June sunrise & sunset times

Browse the sunrise and sunset times for New Haven in June 2025. Select a month to view New Haven sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:21 19:19
Sunday, 15th June 2025 04:18 19:27
Monday, 30th June 2025 04:22 19:29

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